Display device



FIG. 1 is a front perspective view of a display device showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a rear elevational view thereof. 

The ornamental design for a display device, as shown and described. 